Constrained optimization over discrete sets via SPSA with application to non-separable resource allocation. - James E. Whitney II; Latasha I. Solomon; Stacy D. Hill (WSC, 2001)

Comparison of the SPSA and simulated annealing algorithms for the constrained optimization of discrete non-separable functions. - James E. Whitney II; Stacy D. Hill; Dennis Wairia; Farshad Bahari (ACC, 2003)